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WIRELESS POLLING SYSTEM USING SPREAD-SPECTRUM COMMUNICATION

  • US 20040229642A1
  • Filed: 05/12/2004
  • Published: 11/18/2004
  • Est. Priority Date: 05/12/2003
  • Status: Active Grant
First Claim
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1. A wireless communication system, comprising:

  • at least one base unit and a plurality of handheld response units communicating with said at least one base unit over at least one wireless communication link;

    said at least one base unit sending polling signals to said response units over said at least one wireless communication link;

    said response units sending response data to said at least one base unit over said at least one wireless communication link in response to one of the polling signals, the response data being entered in the respective response unit by a user; and

    said at least one communication link comprising at least one base transceiver at said at least one base unit and a plurality of response transceivers, each at one of said response units, said at least one base transceiver and said response transceivers communicating with a spread-spectrum frequency hopping protocol.

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